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15. On Site Processing: <br /> Solution(SO) Chemical(CH) Thermal(TH) <br /> Heap Leach(HL) Vat Leach(VL) <br /> List any designated chemicals or acid-producing materials to be used or stored within permit area: <br /> Permit area contains pre-existing mine waste, which will be disturbed during operations. <br /> Description of Amendment: <br /> If you are amending or converting an existing operation,provide a brief narrative describing the proposed change(s): <br /> Expanding London Mine 11 OD permit to encompass all private ground with potential waste piles as <br /> part of the long-term clean up strategy for the drainage. Conversion approval not expected before <br /> November 28, 2025. <br /> 5 <br />